As men mature, their voices deepen and sometimes become more rough as well.
当男性成熟的时候，他们的声音会变得低沉，有时候也会粗糙。
The more rough and jagged something is, the more easily more of its molecules will come into contact with molecules on the surface it touches, and thus the greater force of friction they will exert.
物体表面越粗糙不平，它的分子就越容易更多地与接触表面的分子相粘合，因此就会产生更大的摩擦力。
Glass fiber rod is also more common, a glass fiber rod has a lot of series, the more rough the more strong, but the relative flexibility is relatively weak.
玻璃纤维杆也是比较常见的一种，玻璃纤维杆有很多系列，一般越粗刚性越强可是相对的柔性越弱。
Now we shall have no more rough road, Miss Crawford; our difficulties are over. The rest of the way is such as it ought to be.
现在吗，克劳福德小姐，不会再有高低不平的路了，艰难的路途结束了，剩下的路都挺好。
Now we shall have no more rough road, Miss Crawford; our difficulties are over. The rest of the way is such as it ought to be.
现在吗，克劳福德小姐，不会再有高低不平的路了，艰难的路途结束了，剩下的路都挺好。
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